Ark Golden has gained an expertise in the production of Phenalkamine Hardeners. Phenalkamine Hardeners are unique CNSL based curing agents with inherent property to cure epoxy resins at low temperatures down to 0°C under high humidity with surface tolerance and adequate flexibility. As a result, Phenalkamine Hardeners have an edge over both polyamides and polyamines in the field of mainly Marine & Protective Epoxy Coatings.
Phenalkamines are inherently Mannich-base reactions, involving reaction of Cardanol and Paraformaldehyde in presence of certain amines. They are best suited for applications in the marine industry, construction coatings and adhesives, providing excellent corrosion resistance and improved performance properties.
Advantages of Ark® Phenalkamines over Commercial Phenalkamines
- High solids
- Rapid Curing at Low temperatures
- Improved flexibility and adhesion
- Excellent sea water resistance
- Improved mechanical properties
- Food grade application
- Blush free performance
| Epoxy Hardener | Color (Gardner) | Viscosity (cP @ 77°F) | Specific Gravity (@77°F) | Amine Value (mg KOH/g) | AHEW, g/eq. | Reactive contents, % | Use Level (PHR) with Epoxy Resin EEW =188 | Comments |
|---|---|---|---|---|---|---|---|---|
| AG 140 | 17 | 1500 - 3000 | 0.97 - 0.99 | 490 - 550 | 81 | 100 | 43 | higher reactivity and chemical resistance over AG 141 |
| AG 141 | 17 | 15000 - 40000 | 0.97 - 0.99 | 300 - 325 | 130 | 100 | 69 | Low cost, better pot life, flexibility and gloss over AG 140 |
| Ark 168R | 17 | 500 - 2000 | 0.96 - 0.98 | 340 - 400 | 95 | 100 | 50 | Faster curing |
| AG 1400 | 17 | 5000 - 10000 | 0.97 - 0.99 | 395 - 425 | 95 | 100 | 50 | Balanced properties over AG 140 and AG 141 |
| AG 151 | 16 | 1000 - 3000 | 0.97 - 0.99 | 410 - 440 | 95 | 100 | 50 | Faster curing time and better gloss over AG 140 |
| Ark 147 | 17 | 8000 - 20000 | 0.96 - 0.99 | 390 - 420 | 100 | 100 | 53 | Rapid curing phenalkamine with short pot life |
| Ark 105 | 17 | 10000 - 20000 | 0.96 - 0.99 | 350 - 440 | 105 | 100 | 56 | Fast curing with improved gloss |
| Ark 162P | 16 | 5000 - 10000 | 0.97 - 0.98 | 425 - 445 | 95 | 100 | 50 | Good adhesion with cathodic protection and gloss |
| Ark 351 | 16 | 3500 - 7000 | 0.97 - 0.99 | 285 - 305 | 150 | 100 | 80 | Good flexibility and bonding over wet substrates |
| Ark 362 | 15 | 500 - 2500 | 0.96 - 0.99 | 160 - 210 | 174 | 65 | 93 | Primer application with good flexibility and adhesion |
| Ark 300 | 15 | 500 - 1500 | 0.94 - 0.97 | 150 - 180 | 286 | 60 | 152 | General purpose for primer application |
| Ark 355 | 16 | 1500 - 2500 | 0.95 - 0.98 | 185 - 210 | 164 | 70 | 87 | Primer application with improved solid content |
| AG 141 X90 | 17 | 2000 - 6000 | 0.97 - 1.01 | 265 - 310 | 144 | 90 | 77 | Solution of AG 141 with 10% xylene |